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Finding the Fourth Proportional to 8,448.53, 12,672.96 and 2,605.13

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Solution

The fourth proportional to 8,448.53, 12,672.96 and 2,605.13 is: 3,907.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,448.53 : 12,672.96 = 2,605.13 : x
  2. Step 2: Convert to fraction form
    8,448.53/12,672.96 = 2,605.13/x
  3. Step 3: Cross multiply
    8,448.53x = 12,672.96 × 2,605.13
  4. Step 4: Simplify right side
    8,448.53x = 33,014,644.92
  5. Step 5: Solve for x
    x = 33,014,644.92/8,448.53
  6. Step 6: Final answer
    x = 3,907.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.